You are probably right about meme/gifs (or xkcd comics) anywhere near the top indicating a low-quality post. Though they are fine if you can get a few pages in before finding memes/comics. Meme style gifs below the fold... probably not.
But we are talking here about headers with abstract "art". They are more there for style and "vibe".
Placing a Meme/gif/comic comic above the fold seems to indicate the author was unconfident about the actual content hooking the reader, and they decided to try and hook them with humour or recognisable memes instead. Which is a bad sign in itself.
All that custom abstract art in the header really tells you is the author cares about style/vibe. Which I'd argue is not a bad sign in itself; though perhaps it's a warning sign to quickly check other things, like does the style/vibe match the content you are expecting? Is this just low-effort content to attract newsletter signups?
It's also annoying when the header takes up more than half the screen. Especially more than half of a desktop screen. Phones are somewhat excusable. But I'm not sure there is a correlation between that and bad articles. Caring about style is not the same thing as being good at style.
But we are talking here about headers with abstract "art". They are more there for style and "vibe".
Placing a Meme/gif/comic comic above the fold seems to indicate the author was unconfident about the actual content hooking the reader, and they decided to try and hook them with humour or recognisable memes instead. Which is a bad sign in itself.
All that custom abstract art in the header really tells you is the author cares about style/vibe. Which I'd argue is not a bad sign in itself; though perhaps it's a warning sign to quickly check other things, like does the style/vibe match the content you are expecting? Is this just low-effort content to attract newsletter signups?
It's also annoying when the header takes up more than half the screen. Especially more than half of a desktop screen. Phones are somewhat excusable. But I'm not sure there is a correlation between that and bad articles. Caring about style is not the same thing as being good at style.